Bow tie



FIG. 1 is a front view of a bow tie in accordance with my new design;

FIG. 2 is a back view thereof; and,

FIG. 3 is a side view thereof.

The broken lines and the areas within the broken lines illustrate portions of the bow tie that form no part of the claimed design. 

CLAIM The ornamental design for a bow tie, as shown and described. 